Tag Archives: last

The last mammoths died on a remote island

Isolation, extreme weather, and the possible arrival of humans may have killed off the holocene herbivores just 4,000 years ago. Paleontology News — ScienceDaily

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Earth’s last magnetic field reversal took far longer than once thought

Every several hundred thousand years or so, Earth’s magnetic field dramatically shifts and reverses its polarity. Geologist found that the most recent field reversal, some 770,000 years ago, took at least 22,000 years to complete. That’s several times longer than … Continue reading

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Long-lasting effects of ironwork on mammal distributions over the last millennium

Pre-modern energy-intensive industries have had long-lasting impacts on macro-ecological patterns. A new study revealed that the impact of pre-modern ironwork starting over 1000 years ago can still be seen in the distributions of small mammals in Japan today. The study … Continue reading

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Ancient extinct sloth tooth in Belize tells story of creature’s last year

Some 27,000 years ago in central Belize, a giant sloth was thirsty. It eventually found water in a deep sinkhole, but it was the creature’s last drink. A new analysis of its tooth offers insight into the landscape it inhabited … Continue reading

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New light shed on what drove last, long-term global climate shift

The quest to discover what drove the last, long-term global climate shift on Earth, which took place around a million years ago, has taken a new, revealing twist. Paleontology News — ScienceDaily

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Tiny Australian wallaby the last living link to extinct giant kangaroos

Scientists reveal that Australia’s pint-sized banded hare-wallaby is the closest living relative of the giant short-faced kangaroos which roamed the continent for millions of years, but died out about 40,000 years ago. Paleontology News — ScienceDaily

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Where did broadleaved evergreen trees survive during the last glacial period in Japan?

Scientists have modeled the phylogeographic relationships and demographic changes of Castanopsis sieboldii, which is a dominant tree of the broadleaved evergreen forests of Japan, dating back to about 100,000 years ago. The model strongly suggested that C. sieboldii survived in … Continue reading

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Cockroach ancient geographic and genomic history traced back to last supercontinent

Armed with a vast amount of genomic information, a team of researchers has performed the first molecular dating to gain the clearest picture yet of the biogeographical history of cockroaches. They have traced back the key evolutionary time points of … Continue reading

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Most of last 11,000 years cooler than past decade in North America, Europe

Natural fluctuations in climate have occurred over past millennia, which would have naturally led to climatic cooling today in the absence of human activity. Paleontology News — ScienceDaily

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Present local weather change unparalleled during the last one hundred million years?

A workforce of researchers has found a flaw in the best way previous ocean temperatures have been estimated thus far. Their findings might imply that the present interval of local weather change is unparalleled during the last one hundred million … Continue reading

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